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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/child/webkitplatformsupport_child_impl.h"
#include "base/memory/discardable_memory.h"
#include "base/memory/scoped_ptr.h"
#include "base/synchronization/waitable_event.h"
#include "content/child/web_discardable_memory_impl.h"
#include "third_party/WebKit/public/platform/WebWaitableEvent.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "webkit/child/fling_curve_configuration.h"
#include "webkit/child/webthread_impl.h"
#include "webkit/child/worker_task_runner.h"
#if defined(OS_ANDROID)
#include "webkit/child/fling_animator_impl_android.h"
#endif
using blink::WebFallbackThemeEngine;
using blink::WebThemeEngine;
namespace content {
namespace {
class WebWaitableEventImpl : public blink::WebWaitableEvent {
public:
WebWaitableEventImpl() : impl_(new base::WaitableEvent(false, false)) {}
virtual ~WebWaitableEventImpl() {}
virtual void wait() { impl_->Wait(); }
virtual void signal() { impl_->Signal(); }
base::WaitableEvent* impl() {
return impl_.get();
}
private:
scoped_ptr<base::WaitableEvent> impl_;
DISALLOW_COPY_AND_ASSIGN(WebWaitableEventImpl);
};
} // namespace
WebKitPlatformSupportChildImpl::WebKitPlatformSupportChildImpl()
: current_thread_slot_(&DestroyCurrentThread),
fling_curve_configuration_(new webkit_glue::FlingCurveConfiguration) {}
WebKitPlatformSupportChildImpl::~WebKitPlatformSupportChildImpl() {}
WebThemeEngine* WebKitPlatformSupportChildImpl::themeEngine() {
return &native_theme_engine_;
}
WebFallbackThemeEngine* WebKitPlatformSupportChildImpl::fallbackThemeEngine() {
return &fallback_theme_engine_;
}
void WebKitPlatformSupportChildImpl::SetFlingCurveParameters(
const std::vector<float>& new_touchpad,
const std::vector<float>& new_touchscreen) {
fling_curve_configuration_->SetCurveParameters(new_touchpad, new_touchscreen);
}
blink::WebGestureCurve*
WebKitPlatformSupportChildImpl::createFlingAnimationCurve(
int device_source,
const blink::WebFloatPoint& velocity,
const blink::WebSize& cumulative_scroll) {
#if defined(OS_ANDROID)
return webkit_glue::FlingAnimatorImpl::CreateAndroidGestureCurve(
velocity, cumulative_scroll);
#endif
if (device_source == blink::WebGestureEvent::Touchscreen)
return fling_curve_configuration_->CreateForTouchScreen(velocity,
cumulative_scroll);
return fling_curve_configuration_->CreateForTouchPad(velocity,
cumulative_scroll);
}
blink::WebThread* WebKitPlatformSupportChildImpl::createThread(
const char* name) {
return new webkit_glue::WebThreadImpl(name);
}
blink::WebThread* WebKitPlatformSupportChildImpl::currentThread() {
webkit_glue::WebThreadImplForMessageLoop* thread =
static_cast<webkit_glue::WebThreadImplForMessageLoop*>(
current_thread_slot_.Get());
if (thread)
return (thread);
scoped_refptr<base::MessageLoopProxy> message_loop =
base::MessageLoopProxy::current();
if (!message_loop.get())
return NULL;
thread = new webkit_glue::WebThreadImplForMessageLoop(message_loop.get());
current_thread_slot_.Set(thread);
return thread;
}
blink::WebWaitableEvent* WebKitPlatformSupportChildImpl::createWaitableEvent() {
return new WebWaitableEventImpl();
}
blink::WebWaitableEvent* WebKitPlatformSupportChildImpl::waitMultipleEvents(
const blink::WebVector<blink::WebWaitableEvent*>& web_events) {
base::WaitableEvent** events = new base::WaitableEvent*[web_events.size()];
for (size_t i = 0; i < web_events.size(); ++i)
events[i] = static_cast<WebWaitableEventImpl*>(web_events[i])->impl();
size_t idx = base::WaitableEvent::WaitMany(events, web_events.size());
DCHECK_LT(idx, web_events.size());
return web_events[idx];
}
void WebKitPlatformSupportChildImpl::didStartWorkerRunLoop(
const blink::WebWorkerRunLoop& runLoop) {
webkit_glue::WorkerTaskRunner* worker_task_runner =
webkit_glue::WorkerTaskRunner::Instance();
worker_task_runner->OnWorkerRunLoopStarted(runLoop);
}
void WebKitPlatformSupportChildImpl::didStopWorkerRunLoop(
const blink::WebWorkerRunLoop& runLoop) {
webkit_glue::WorkerTaskRunner* worker_task_runner =
webkit_glue::WorkerTaskRunner::Instance();
worker_task_runner->OnWorkerRunLoopStopped(runLoop);
}
blink::WebDiscardableMemory*
WebKitPlatformSupportChildImpl::allocateAndLockDiscardableMemory(size_t bytes) {
base::DiscardableMemoryType type =
base::DiscardableMemory::GetPreferredType();
if (type == base::DISCARDABLE_MEMORY_TYPE_EMULATED)
return NULL;
return content::WebDiscardableMemoryImpl::CreateLockedMemory(bytes).release();
}
// static
void WebKitPlatformSupportChildImpl::DestroyCurrentThread(void* thread) {
webkit_glue::WebThreadImplForMessageLoop* impl =
static_cast<webkit_glue::WebThreadImplForMessageLoop*>(thread);
delete impl;
}
} // namespace content
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